Borrelia mayonii Disease Statistics

Human illness due to Borrelia mayonii was first identified in a Minnesota resident in 2013. Since then, an average of 1-3 human cases have been reported in Minnesota residents each year.

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Maps

Maps

Most B. mayonii cases report likely exposure to blacklegged ticks in the same east-central, north-central, and southeast Minnesota counties where the risk of Lyme disease is greatest.

• High Risk Areas for Tickborne Diseases in Minnesota
  A map that shows counties of highest tickborne disease risk in Minnesota.